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Channel Manipulation
Note that you can also use negative values on the channels. For example:
| Channel | % Value | Additional Value |
| Red | -100% | 256 |
| Green | -100% | 256 |
| Blue | -100% | 256 |
| Alpha | 100% | 0 |
This will invert all the channels - transforming its "brightness values" into, in fact, "darkness values" - and then pumping its values (that are now negative) up again by adding a 256 value to them (the maximum value a color channel can have). The result is an "inverse" image:
Many more manipulations can be done.
| » Level Intermediate |
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Added: 2000-12-04 Rating: 9 Votes: 258 |
| » Author |
| Jose Fernando is a technology child, works as a designer, lives in Brazil and watches lots of Anime videos |
| » Download |
| Download the files used in this tutorial. |
| Download (121 kb) |
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